DEBTS 261 Interest shall not be payable on sums of money due by \vay of dividend, interest or other periodical payments which themselves represent interest on capital. The rate of interest shall be 5 per cent, per annum except in cases \vhere, by contract, law or custom, the creditor is entitled to payment of interest at a different rate. In such cases the rate to which he is entitled shall prevail. Interest shall run from the date of commencement of hostilities (or, if the sum of money to be recovered fell due during the war, from the date at which it fell due) until the sum is credited to the Clearing Office of the creditor. Sums due by way of interest shall be treated as debts admitted by the Clearing Offices and shall be credited to the Creditor Clearing Office in the same way as such debts. 23. Where by decision of the Clearing Offices or the Mixed Arbitral Tribunal a claim is held not to fall within Article 296, the creditor shall be at liberty to prosecute the claim before the Courts or to take such other proceedings as may be open to him. The presentation of a claim to the Clearing Office suspends the operation of any period of prescription. 24. The High Contracting Parties agree to regard the decisions of the Mixed Arbitral Tribunal as final and conclusive., and to render them binding upon their nationals. 25. In any case where a Creditor Clearing Office declines to notify a claim to the Debtor Clearing Office, or to take any step provided for in this Annex, intended to make effective in whole or in part a request of which it has received due notice, the enemy creditor shall be entitled to receive from the Clearing Office a certificate setting out the amount of the claim, and shall then be entitled to prosecute the claim before the courts or to take such other proceedings as may be open to him. SECTION IV PROPERTY, RIGHTS AND INTERESTS ARTICLE 297. The question of private property, rights and interests in an enemy country shall be settled according to the principles laid down in this Section and to the provisions of the Annex hereto. (a) The exceptional war measures and measures of transfer (defined in paragraph 3 of the Annex hereto) taken hy Germany with respect to the property, rights and interests of